Answer / iamdon

The time constant of the turbine mass system is of order of
seconds(s) while the time constant of the electrical system
is of the order of milli second(ms).That is why during
transients, the mechanical power input remains almost
unchanged while the electrical power output changes
significantly.

Author:arbelectbit@yahoo.com

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 Answers  

---

What is C curve and D curve of MCB?

3 Answers   GMR,

---

For a 500 MVA 400/220/33KV transformer following data given HV power = 500 MVA IV power = 500 MVA LV power = 5 MVA If input power is 500 MVA then how output power is (500+5)MVA. Can anyone help

1 Answers   MEIL,

---

In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

0 Answers  

---

What are the diferences between ELCB and RCCB

5 Answers   L&T,

---

What happened when the field winding of dc series motor is open?

2 Answers   Bhel,

---

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

0 Answers  

---

HI FRIENDS,MYSELF & MY GROUP OF FINAL YEAR ELECT ENGG. ARE MAKING A 50/3HZ,5HP,1000RPM,440V SALIENT POLE SYNCHRONOUS GENERATOR.COULD ANYONE OF U TELL ME WHAT COULD BE THE ADV. & DISADVANTAGES OF MAKING SUCH A LOW FREQN.GENERATOR/

2 Answers  

---

What are hrc fuses and where it is used?

0 Answers  

---

what is mean by NTPC?,why didn't electric shock in train?

7 Answers  

---

Hydro P.P. run @ 600 rpm,8pole, Nucler P.P @ 1500rpm 4 pole , ThermlP.P @ 3000 rpm 2 pole.Why this diffrence??? when we can generate electricity @ 600 rpm then Why we had incresed speed in NPP & TPP???

3 Answers  

---

what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

4 Answers   KSK Energy, Reliance,

---